That assumes that even extremely miserable lifes are worth living. If I lived in factory farm conditions my whole life, with the kind of procedures the animals have to go through, I’d try to end my life as soon as possible, as far as I can tell. Thankfully I never had to make that consideration in my life.
In terms of Utilitarianism, a life on a factory farm is one of the clearest examples of a life with a net negative intrinsic utility I could think of.
I feel like the repugnant conclusion is more about minimally positive utility lives.



If I literally had that experience for my whole life until then, I’m pretty certain that I would end it. Even if I knew that I would get out somehow. I can’t even imagine how traumatizing it must be if you never experienced comfort and safety, for your entire life.
Maybe watch Dominion if you can’t see my point.